135151443 has 16 divisors (see below), whose sum is σ = 228828160. Its totient is φ = 77229288.

The previous prime is 135151439. The next prime is 135151453. The reversal of 135151443 is 344151531.

It is a happy number.

135151443 is a `hidden beast` number, since 1 + 3 + 515 + 144 + 3 = 666.

135151443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135151443 - 2² = 135151439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135151453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357355 + ... + 357732.

It is an arithmetic number, because the mean of its divisors is an integer number (14301760).

Almost surely, 2^135151443 is an apocalyptic number.

135151443 is a deficient number, since it is larger than the sum of its proper divisors (93676717).

135151443 is an equidigital number, since it uses as much as digits as its factorization.

135151443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715103 (or 715097 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 135151443 is about 11625.4652810113. The cubic root of 135151443 is about 513.1845374196.

The spelling of 135151443 in words is "one hundred thirty-five million, one hundred fifty-one thousand, four hundred forty-three".